CN107639171A - Multi-point tube expander - Google Patents
Multi-point tube expander Download PDFInfo
- Publication number
- CN107639171A CN107639171A CN201711124756.7A CN201711124756A CN107639171A CN 107639171 A CN107639171 A CN 107639171A CN 201711124756 A CN201711124756 A CN 201711124756A CN 107639171 A CN107639171 A CN 107639171A
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- China
- Prior art keywords
- expander
- spring
- pawl
- valve bar
- driving
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/02—Enlarging
- B21D41/026—Enlarging by means of mandrels
- B21D41/028—Enlarging by means of mandrels expandable mandrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/02—Enlarging
- B21D41/021—Enlarging by means of tube-flaring hand tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a kind of multi-point tube expander, comprising：The housing of a pair of opposing；One driving worm screw；One handle；One driving worm gear；One drive shaft；One expander component, described expander component is rotatably arranged in the head of described drive shaft, described expander component includes the expander valve bar of a pair of opposing, some reset spring coils, the spring seat slice and a pawl assembly of a pair of arcs, described pawl assembly includes a ratchet ring support, some reduction torsion springs and some expansion pawls, wherein, described expander valve bar is between one first operating position and one second operating position, when described expander valve bar is in the first operating position, a pair of described expander valve bars close up into a cylinder, when described expander valve bar is in the second operating position, a pair of described expander valve bars outwards separate and extrude the inwall of copper pipe simultaneously.Tube expander operation facility, no dependence electric power, is adapted to the expander operation of the copper pipe of a variety of calibers.
Description
Technical field
The present invention relates to a kind of instrument, more precisely, being a kind of tube expander.
Background technology
In refrigerating field, it is often necessary to carry out expander to the interface of copper pipe, existing method is typically using special multiple
Mould carries out expander, and operation is rather inconvenient.
The content of the invention
The present invention mainly solves the technical problem present in prior art, so as to provide a kind of tube expander.
The above-mentioned technical problem of the present invention is mainly what is be addressed by following technical proposals：
The invention discloses a kind of multi-point tube expander, it is characterised in that described multi-point tube expander includes：
The housing of a pair of opposing；
One driving worm screw；
One handle, described handle are removably disposed in the afterbody of described driving worm screw；
One driving worm gear, described driving worm gear are engaged with described driving worm screw；
One drive shaft, described drive shaft run through described driving worm gear, and the head of described drive shaft is provided with
One columned second connection cylinder, the outer wall circumference at the top of the described second connection cylinder are provided with some drivings and protruded；
One expander component, described expander component are rotatably arranged in the head of described drive shaft, described expansion
Tube assembly runs through one second spring bearing, and described expander component includes the expander valve bar, some return springs of a pair of opposing
The spring seat slice and a pawl assembly of circle, a pair of arcs, the head of described expander valve bar is provided with a ladder tringle, described expansion
The afterbody of pipe valve bar is provided with the rotating cylinder of a semi-circular cylindrical, and the outer wall of described expander valve bar is provided with the upper bullet of some arcs
Spring locating slot, the inwall of described spring seat slice are provided with the lower spring locating slot of some arcs, described reset spring coil difference
It is arranged between described upper spring locating slot and lower spring locating slot；
Described pawl assembly includes a ratchet ring support, some reduction torsion springs and some expansion pawls, described ratchet circle
Seat includes the ring support main body of an annular, be evenly provided with the inwall circumference of described ring support main body some pawl rotation circular grooves and
Some torsion springs fix circular groove, and the extension spine described in a confession is respectively equipped between adjacent pawl rotation circular groove and torsion spring fixation circular groove
The activity space of pawl activity, the spring body of described reduction torsion spring are arranged on described torsion spring and fixed in circular groove, described extension spine
Pawl includes a ratchet main shaft, and one end of described ratchet main shaft is provided with the first driving projection of a wedge shape, described ratchet main shaft
The other end be provided with a discoid second driving projection, the end of the described first driving projection is provided with a columned projection
Rotary shaft, described projection rotary shaft are rotatably arranged in described pawl rotation circular groove, the described first driving projection
Outer wall on be respectively equipped with a torsion spring neck；
Wherein, described expander valve bar is between one first operating position and one second operating position, when described expansion
When pipe valve bar is in the first operating position, a pair of described expander valve bars close up into a cylinder, when described expander valve bar is in
During the second operating position, a pair of described expander valve bars outwards separate and extrude the inwall of copper pipe simultaneously.
As preferred embodiments of the present invention, described expander valve bar has magnetic.
Invention additionally discloses a kind of multi-point tube expander, described multi-point tube expander includes：
The housing of a pair of opposing, the center of described housing are provided with a fixed shaft hole, the week of described fixed shaft hole
Some first connected circular holes are provided with upwards, and a semicircular mouth of connecting trough, institute are respectively equipped with the front-rear side walls of described housing
The circumference for the mouth of connecting trough stated is provided with some second connected circular holes, and a ring is respectively equipped with the outside of the first described connected circular hole
First connection the ring disk of shape, the circumference of the described first connection the ring disk are provided with some first the ring disk circular holes, the first described ring
Disk circular hole is connected by one first attachment screw respectively with the first described connected circular hole, the outside point of described mouth of connecting trough
Not She You one annular second connection the ring disk, described second connection the ring disk circumference be provided with some second the ring disk circular holes, institute
The the second the ring disk circular hole stated is connected by one second attachment screw respectively with the second described connected circular hole；
One driving worm screw, described driving worm screw are rotatably arranged between described mouth of connecting trough, described driving
Worm screw includes a worm shaft and a worm gear denticle, and the both ends of described worm shaft are respectively equipped with a worm bearing, described worm screw
Bearing is separately positioned between described mouth of connecting trough；
One handle, described handle are removably disposed in the afterbody of described worm shaft；
One driving worm gear, described driving worm gear be arranged on described in fixed shaft hole between and with described worm-gear toothing body phase
Coordinate, the center of described driving worm gear is provided with a worm gear axis hole, and the inwall of described worm gear axis hole is provided with a locking notch；
One drive shaft, described drive shaft run through described worm gear axis hole, and described drive shaft includes a cylinder
The rotating shaft main body of shape, the side wall of described rotating shaft main body are provided with a locking horizontal stripe, described locking horizontal stripe and described locking
Notch is engaged, and the afterbody of described rotating shaft main body is provided with a columned first connection cylinder, the head of described rotating shaft main body
Portion is provided with a columned second connection cylinder, and the outer wall circumference at the top of the described second connection cylinder is provided with some drivings
Prominent, the first described connection cylinder runs through one first spring bearing；
One expander component, described expander component are rotatably arranged in the head of described drive shaft, described expansion
Tube assembly runs through one second spring bearing, and described expander component includes the expander valve bar, some return springs of a pair of opposing
The spring seat slice and a pawl assembly of circle, a pair of arcs, the head of described expander valve bar is provided with a ladder tringle, described expansion
The afterbody of pipe valve bar is provided with the rotating cylinder of a semi-circular cylindrical, and the outer wall of described expander valve bar is provided with the upper bullet of some arcs
Spring locating slot, the inwall of described spring seat slice are provided with the lower spring locating slot of some arcs, described reset spring coil difference
It is arranged between described upper spring locating slot and lower spring locating slot；
Described pawl assembly includes a ratchet ring support, some reduction torsion springs and some expansion pawls, described ratchet circle
Seat includes the ring support main body of an annular, be evenly provided with the inwall circumference of described ring support main body some pawl rotation circular grooves and
Some torsion springs fix circular groove, and the extension spine described in a confession is respectively equipped between adjacent pawl rotation circular groove and torsion spring fixation circular groove
The activity space of pawl activity, the spring body of described reduction torsion spring are arranged on described torsion spring and fixed in circular groove, described extension spine
Pawl includes a ratchet main shaft, and one end of described ratchet main shaft is provided with the first driving projection of a wedge shape, described ratchet main shaft
The other end be provided with a discoid second driving projection, the end of the described first driving projection is provided with a columned projection
Rotary shaft, described projection rotary shaft are rotatably arranged in described pawl rotation circular groove, the described first driving projection
Outer wall on be respectively equipped with a torsion spring neck；
Wherein, described expander valve bar is between one first operating position and one second operating position, when described expansion
When pipe valve bar is in the first operating position, a pair of described expander valve bars close up into a cylinder, when described expander valve bar is in
During the second operating position, a pair of described expander valve bars outwards separate and extrude the inwall of copper pipe simultaneously.
As preferred embodiments of the present invention, described expander valve bar has magnetic.
The invention also discloses a kind of pawl assembly for tube expander, comprising a ratchet ring support, some reduction torsion springs and
Some expansion pawls, described ratchet ring support include the ring support main body of an annular, and the inwall of described ring support main body is circumferentially upper equal
Be provided with some pawl rotation circular grooves and some torsion springs evenly and fix circular groove, adjacent pawl rotation circular groove and torsion spring fix circular groove it
Between be respectively equipped with the activity space of expansion pawl activity described in a confession, the spring body of described reduction torsion spring is arranged on described torsion
Spring is fixed in circular groove, and described expansion pawl include a ratchet main shaft, and one end of described ratchet main shaft is provided with one wedge-shaped the
One driving projection, the other end of described ratchet main shaft are provided with a second discoid driving projection, and the described first driving is convex
The end of block is provided with a columned projection rotary shaft, and described projection rotary shaft is rotatably arranged in described pawl rotation
In circular groove, a torsion spring neck is respectively equipped with the outer wall of the described first driving projection, described reduction torsion spring is oppressed described
Expansion pawl, and cause described expansion pawl that there is the trend of the pivot towards described ratchet ring support.
The tube expander of the present invention has advantages below：Tube expander operation facility, no dependence electric power, is adapted to a variety of calibers
The expander operation of copper pipe, it also is adapted for the expander operation of other flexible metal conduits.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the dimensional structure diagram of the tube expander of the present invention；
Fig. 2 is the stereochemical structure decomposing schematic representation of the tube expander in Fig. 1；
Fig. 3 is the detail enlarged diagram of the a-quadrant of the tube expander in Fig. 2；
Fig. 4 is the further stereochemical structure decomposing schematic representation of the tube expander in Fig. 2；
Fig. 5 is the further stereochemical structure decomposing schematic representation of the tube expander in Fig. 4；
Fig. 6 is the detail enlarged diagram of the B area in Fig. 5；
Fig. 7 is the stereochemical structure decomposing schematic representation of the expander component of the tube expander in Fig. 5；
Fig. 8 is the detail enlarged diagram in the C regions in Fig. 7；
Fig. 9 is the operation chart of the tube expander of the present invention, only show part-structure, now, the drive of drive shaft
It is dynamic prominent on neutral position；
Figure 10 is sectional view of the tube expander along line D-D in Fig. 9；
Figure 11 is the detail enlarged diagram in the E regions in Figure 10；
Figure 12 is the operation chart of the tube expander of the present invention, only show part-structure, now, the drive of drive shaft
Dynamic prominent dieback slips into inclined-plane；
Figure 13 is sectional view of the tube expander along F-F lines in Figure 12；
Figure 14 is the detail enlarged diagram in the G regions in Figure 13；
Figure 15 is the operation chart of second of embodiment of the tube expander of the present invention, only show part-structure,
Now, the driving of drive shaft, which protrudes to start to head into, slips into inclined-plane and progressive cambered surface；
Figure 16 is sectional view of the tube expander along H-H lines in Figure 15；
Figure 17 is the detail enlarged diagram in the I regions in Figure 16；
Figure 18 is the dimensional structure diagram of the expander valve bar of the tube expander in Figure 15；
Figure 19 is sectional view of the expander valve bar along J-J lines in Figure 18；
Figure 20 is the dimensional structure diagram of the expander valve bar in the third embodiment of the tube expander of the present invention；
Figure 21 is the detail enlarged diagram in the K regions in Figure 20；
Figure 22 is the dimensional structure diagram of the expander valve bar in the 4th kind of embodiment of the tube expander of the present invention；
Figure 23 is sectional view of the expander valve bar along L-L lines in Figure 22；
Figure 24 is the 5th kind of embodiment of the tube expander of the present invention, now only show part-structure；
Figure 25 is sectional view of the tube expander along M-M lines in Figure 24；
Figure 26 is the detail enlarged diagram of the n-quadrant in Figure 25；
Figure 27 is the stereochemical structure decomposing schematic representation of the tube expander in Figure 24；
Figure 28 is the detail enlarged diagram in the P regions in Figure 27；
Figure 29 is the dimensional structure diagram of the pawl assembly of the tube expander in Figure 27；
Figure 30 is the dimensional structure diagram of the pawl assembly of the tube expander in Figure 27, is now another visual angle；
Figure 31 is the stereochemical structure decomposing schematic representation of the pawl assembly in Figure 30；
Figure 32 is the detail enlarged diagram in the Q regions in Figure 31；
Figure 33 is the dimensional structure diagram of the ratchet ring support of the pawl assembly in Figure 31；
Figure 34 is the dimensional structure diagram of the expansion pawl of the pawl assembly in Figure 31.
Embodiment
The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, apparent is clearly defined so as to be made to protection scope of the present invention.
As shown in Figures 1 to 8, the tube expander 1 includes the housing 2 of a pair of opposing, and the center of the housing 2 is provided with one and consolidated
Dead axle hole 21, the circumference of the fixed shaft hole 21 are provided with some first connected circular holes 22, set respectively on the front-rear side walls of the housing 2
There is a semicircular mouth of connecting trough 23, the circumference of the mouth of connecting trough 23 is provided with some second connected circular holes 24, first connection
The outside of circular hole 22 is respectively equipped with the first connection the ring disk 3 of an annular, and the circumference of the first connection the ring disk 3 is provided with some first
The ring disk circular hole 31, the first the ring disk circular hole 31 are connected by one first attachment screw 4 respectively with first connected circular hole 22, should
The outside of mouth of connecting trough 23 is respectively equipped with the second connection the ring disk 5 of an annular, if the circumference of the second connection the ring disk 5 is provided with
Dry second the ring disk circular hole 51, the second the ring disk circular hole 51 pass through the phase of one second attachment screw 6 respectively with second connected circular hole 24
Connection.
A driving worm screw 8 is provided between the mouth of connecting trough 23, the driving worm screw 8 is rotatably arranged in the mouth of connecting trough
Between 23, the driving worm screw 8 includes a worm shaft 81 and a worm gear denticle 82, and the both ends of the worm shaft 81 are respectively equipped with a snail
Rod bearing 9, the worm bearing 9 are separately positioned between corresponding mouth of connecting trough 23.
The worm shaft 81 rear removable be provided with one handle 7, for rotate drive worm shaft 81.
A driving worm gear 10 is provided between fixed shaft hole 21, the driving worm gear 10 is engaged with worm gear denticle 82, the drive
The center of dynamic worm gear 10 is provided with a worm gear axis hole 101, and the inwall of the worm gear axis hole 101 is provided with a locking notch 102.
A drive shaft 11 is provided with worm gear axis hole 101, the drive shaft 11 runs through the worm gear axis hole 101, the driving
Rotating shaft 11 includes a columned rotating shaft main body 111, and the side wall of the rotating shaft main body 111 is provided with a locking horizontal stripe 1111, the lock
Only horizontal stripe 1111 is engaged with the locking notch 102.The afterbody of the rotating shaft main body 111 is provided with a columned first connection cylinder
112, the head of the rotating shaft main body 111 is provided with a columned second connection cylinder 113, the top of the second connection cylinder 113
Provided with a discoid driving disk 114, the side wall of the driving disk 114 is provided with a driving prominent 115, first connecting pole
Body 112 runs through one first spring bearing 14.
An expander component S is provided with the head of drive shaft 11.Expander component S runs through one second spring bearing 13, should
Expander component S includes the expander valve bar 12, the spring seat slice 15 of the arc of some reseting leafs 16 and one of a pair of opposing.The expansion
The head of pipe valve bar 12 is provided with a ladder tringle 121, and the afterbody of the expander valve bar 12 is provided with the rotating cylinder of a semi-circular cylindrical
122 and one annular limited location snap ring 123, the both sides of the edge of the rotating cylinder 122 are respectively equipped with a reset breach 124 and one and slided
Enter inclined-plane 125, the outer wall of the expander valve bar 12 is provided with the upper spring locating slot 120 of some arcs, the spring seat slice 15 it is interior
Wall is provided with the lower spring locating slot 151 of some arcs, and the reseting leaf 16 is separately positioned on this spring locating slot 120 with
Between spring locating slot 151.
Wherein, the expander valve bar 12 is between one first operating position and one second operating position, when the expander valve bar
12 when being in the first operating position, and a pair of expander valve bars 12 close up into a cylinder, when the expander valve bar 12 is in the second work
During position, a pair of expander valve bars 12 outwards separate and extrude the inwall of copper pipe simultaneously.The expander valve bar 12 has magnetic, can be with
Effectively prevent rocking for expander valve bar 12.Hereinafter can the working method of expander valve bar 12 continue to be illustrated.
The working method of the tube expander is illustrated below.
As shown in Figures 9 to 11, handle 7 not yet rotates, and the driving of drive shaft 11 protrudes 115 on neutral position,
Now, driving prominent 115 protrudes slips into the space between inclined-plane 125 at a pair.Due to drive disk 114 radius be equal to or
It is slightly less than the radius of the radian of the inwall of rotating cylinder 122, then, expander valve bar 12 closes up into one in the presence of reseting leaf 16
Cylinder or approximate cylinder.
As shown in Figure 12 to Figure 14, the copper pipe for needing expander is inserted into the corresponding rank on ladder tringle 121 by user
On terraced groove, and rotational handle 7.The rotation driving driving worm screw 8 of handle 7, meanwhile, driving worm screw 8 drives driving worm gear 10, driving
Worm gear 10 then drives the synchronous axial system of drive shaft 11.Then, driving prominent 115 starts to extrude slipping into tiltedly in its rotation direction
Face 125, until driving prominent 115 slips into the dieback of inclined-plane 125 by this, now, the driving protrudes 115 and is in dieback position.Now,
A pair of 12 outside separated in synchronization of expander valve bar and the inwall for extruding copper pipe simultaneously, meanwhile, this is to expander valve bar 12 as driving turns
Synchronous axial system occurs for axle 11, quickly completes the expander operation of copper pipe joint.After expander is completed, handle 7 is rotated backward, is driven
Prominent 115, which come back to neutral position, sprinkles, and closes up into a cylinder or approximate cylinder again in the presence of reseting leaf 16.
It is pointed out that in driving prominent 115 from during neutral position turns to dieback position, it is prominent due to driving
The frictional force gone out between 115 and the inwall of rotating cylinder 122, expander valve bar 12 can still occur initially with drive shaft 11 for this
Rotate, until driving prominent 115 reaches dieback position.Once driving prominent 115 reaches dieback position, expander valve bar 12 is with driving
Turn axle 11 starts synchronous axial system.
In the rotation process of handle 7, the rotating speed of handle 7 is reduced by driving worm gear 10, and the moment of torsion of drive shaft 11 obtains
Increase substantially, expander speed is fast, efficiency high.Obviously, driving worm gear 10 is driven to be slowed down here with driving worm screw 8, profit
It is also feasible, such as gear train or planetary gearsets etc. with other slowing-down structures.
As shown in Figure 15 to Figure 19, for the operation chart of second of embodiment of the tube expander of the present invention, Jin Jinxian
Drive shaft 11 and a pair of expander valve bars 120 are shown.Unlike former embodiment, in the inwall of rotating cylinder 122
On be symmetrically provided with a pair of progressive cambered surfaces 1221, the progressive cambered surface 1221 is in an involute.
As shown in Figure 16 and Figure 17, now, the driving protrusion 115 of drive shaft 11, which starts to head into, slips into inclined-plane 125.Work as drive
Turn axle 11 is rotated further, and driving prominent 115 starts to slide against progressive cambered surface 1221 so that a pair of expander valve bars 12 are progressively
Outside separated in synchronization and the inwall for extruding copper pipe simultaneously, until driving protrudes 115 by the progressive dieback of cambered surface 1221.In expander valve bar
During 120 progressive separation, expander valve bar 120 is also as drive shaft 11 rotates.Once driving prominent 115 reaches
Dieback position, expander valve bar 120 quickly complete the expander operation of copper pipe joint with the synchronous axial system of drive shaft 11.Due to using
The progressive cambered surface 1221 of reducing type, copper pipe expansion good evenness, consistency of thickness are good.
As shown in Figure 20 and Figure 21, it is the third embodiment of tube expander of the invention.Now, in expander valve bar 1200
Progressive cambered surface 1221 be provided with some resistance horizontal stripes 12211, for improving between driving prominent 115 and progressive cambered surface 1221
Frictional force.
As shown in Figure 22 and Figure 23, it is the 4th kind of embodiment of tube expander of the invention.With the third embodiment not
It is both that some release arc grooves 12212 are provided with the progressive cambered surface 1221 of expander valve bar 12000, these release arc grooves
12212 arc groove depth is sequentially reduced.
When drive shaft 11 rotates and starts to slide against progressive cambered surface 1221 so that a pair of expander valve bars 12000 are progressive
The outside separated in synchronization in ground and the inwall for extruding copper pipe simultaneously, until driving protrudes 115 by the progressive dieback of cambered surface 1221.It is prominent in driving
Before going out 115 arrival dieback positions, driving prominent 115 can be sequentially entered in some release arc grooves 12212 so that a pair of expander valves
Trickle reduction occurs temporarily for the dilation dimension of bar 12000 so that the deformational stress of inflated copper pipe is released and alleviated.
That is, before driving prominent 115 reaches dieback position, the deformational stress of copper pipe obtains multiple release and alleviation, copper pipe
Deformation uniformity be greatly improved, consistency of thickness is good.
It is the 5th kind of embodiment of the tube expander of the present invention, with foregoing four kinds of embodiments as shown in Figure 24 to Figure 34
Unlike, a pawl assembly R is now introduced in embodiment.Pawl assembly R effect and application method are later
In can explain detailedly.
As Figure 27, drive shaft 11A run through the worm gear axis hole 101, drive shaft 11A includes a columned rotating shaft
Main body 111A, the rotating shaft main body 111A side wall are provided with a locking horizontal stripe 1111A, the locking horizontal stripe 1111A and the lock groove
Mouth 102 is engaged, and rotating shaft main body 111A afterbody is provided with columned first connection a cylinder 112A, rotating shaft main body 111A
Head be provided with a columned second connection cylinder 113A, set in the outer wall circumference at second connection cylinder 113A top
There is the prominent 115A of some drivings, first connection cylinder 112A runs through one first spring bearing 14.
Expander component SA is rotatably arranged in drive shaft 11A head, and expander component SA runs through one second
Spring bearing 13, expander component SA include the expander valve bar 12A, some reset spring coil 16A, a pair of arcs of a pair of opposing
Spring seat slice 15A and a pawl assembly R, expander valve bar 12A head is provided with a ladder tringle 121, expander valve bar 12A
Afterbody be provided with the rotating cylinder 122A of a semi-circular cylindrical, expander valve bar 12A outer wall is provided with the upper spring of some arcs
Locating slot 120A, the spring seat slice 15A inwall are provided with the lower spring locating slot 151A, reset spring coil 16A of some arcs
It is separately positioned on this between spring locating slot 120A and lower spring locating slot 151A.
As shown in figure 31, pawl assembly R is arranged between rotating cylinder 122A, and pawl assembly R includes a ratchet circle
Seat 17, some reduction torsion springs 19 and some expansion pawls 18, the ratchet ring support 17 include the ring support main body 171 of an annular, the circle
Some pawl rotation circular grooves 172 are evenly provided with the inwall circumference of seat main body 171 and some torsion springs fix circular groove 173, it is adjacent
Pawl rotation circular groove 172 and torsion spring fix circular groove 173 between be respectively equipped with an activity space for the activity of the expansion pawl 18
174, the spring body of the reduction torsion spring 19 is arranged on the torsion spring and fixed in circular groove 173.
As shown in figure 34, the expansion pawl 18 includes a ratchet main shaft 181, and one end of the ratchet main shaft 181 is provided with a wedge
First driving projection 182 of shape, the other end of the ratchet main shaft 181 are provided with a second discoid driving projection 185, and this first
The end of driving projection 182 is provided with a columned projection rotary shaft 183, and the projection rotary shaft 183 is rotatably arranged in this
In pawl rotation circular groove 172, a torsion spring neck 184, reduction torsion spring 19 are respectively equipped with the outer wall of the first driving projection 182
A wherein spring leg be stuck in the torsion spring neck 184, another spring leg of reduction torsion spring 19 then props up the bottom of activity space 174.
So, each reduction torsion spring 19 oppresses corresponding expansion pawl 18, and expansion pawl 18 is had towards ratchet ring support 17
The trend of pivot.Obviously, the quantity of reduction torsion spring 19 and expansion pawl 18 can arbitrarily be set.
The course of work of the embodiment is described below.As illustrated in figs. 25 and 26, when drive shaft 11A rotations, driving
The inwall that prominent 115A starts the first driving projection 182 against expansion pawl 18 is slided (by the side wall where torsion spring neck 184
It is defined as the outer wall of the first driving projection 182), then, four expansion pawls 18 start to swing out, meanwhile, expansion pawl 18
Discoid second driving projection 185 start to extrude rotating cylinder 122A so that a pair of outside separated in synchronization of expander valve bar 12A
And the inwall of copper pipe is extruded simultaneously, until driving protrudes 115A by rotating cylinder 122A inwall dieback.Then, this is to expander valve
Bar 12A continues, as synchronous axial system occurs for drive shaft 11A, to quickly complete the expander operation of copper pipe joint.When completion expander
Afterwards, handle 7 is rotated backward, drives prominent 115A to come back on neutral position as shown in Figure 26, is resetting spring coil 16A's
Under effect, expander valve bar 12A closes up into a cylinder or approximate cylinder again.Due to being expanded using multiple spot bit synchronization, the shape of copper pipe
Become uniformity to effectively improve.
Tube expander operation facility, no dependence electric power, is adapted to the expander operation of the copper pipe of a variety of calibers, it is soft also to be adapted for other
The expander operation of metal tube.
This is not limited to, any change or replacement expected without creative work, should all cover the guarantor in the present invention
Within the scope of shield.Therefore, protection scope of the present invention should be determined by the scope of protection defined in the claims.
Claims (5)
1. a kind of multi-point tube expander, it is characterised in that described multi-point tube expander (1) includes：
The housing (2) of a pair of opposing；
One driving worm screw (8)；
One handle (7), described handle (7) are removably disposed in the afterbody of described driving worm screw (8)；
One driving worm gear (10), described driving worm gear (10) are engaged with described driving worm screw (8)；
One drive shaft (11A), described drive shaft (11A) run through described driving worm gear (10), described drive shaft
The head of (11A) is provided with a columned second connection cylinder (113A), the top of the described second connection cylinder (113A)
It is prominent (115A) that outer wall circumference is provided with some drivings；
One expander component (SA), described expander component (SA) are rotatably arranged in the head of described drive shaft (11A),
Described expander component (SA) runs through one second spring bearing (13), and described expander component (SA) includes a pair of opposing
Expander valve bar (12A), some spring seat slices (15A) and a pawl assembly (R) for resetting spring coil (16A), a pair of arcs, it is described
The head of expander valve bar (12A) is provided with a ladder tringle (121), and the afterbody of described expander valve bar (12A) is provided with a semicircular cylinder
The rotating cylinder (122A) of shape, the outer wall of described expander valve bar (12A) are provided with the upper spring locating slot of some arcs
(120A), the inwall of described spring seat slice (15A) are provided with the lower spring locating slot (151A) of some arcs, described reset
Spring coil (16A) is separately positioned between described upper spring locating slot (120A) and lower spring locating slot (151A)；
Described pawl assembly (R) includes a ratchet ring support (17), some reduction torsion springs (19) and some expansion pawls (18), institute
The ratchet ring support (17) stated includes the ring support main body (171) of an annular, and the inwall of described ring support main body (171) is circumferentially upper uniform
Ground is provided with some pawl rotation circular grooves (172) and some torsion springs and fixes circular groove (173), adjacent pawl rotation circular groove (172) and
The activity space (174) for expansion pawl (18) activity being respectively equipped between torsion spring fixation circular groove (173) described in a confession, it is described
The spring body of reduction torsion spring (19) is arranged on described torsion spring and fixed in circular groove (173), and described expansion pawl (18) includes a spine
Pawl main shaft (181), one end of described ratchet main shaft (181) are provided with the first driving projection (182) of a wedge shape, described ratchet
The other end of main shaft (181) is provided with a second discoid driving projection (185), the end of the described first driving projection (182)
End is provided with a columned projection rotary shaft (183), and described projection rotary shaft (183) is rotatably arranged in described ratchet
Rotate in circular groove (172), a torsion spring neck (184) is respectively equipped with the outer wall of the described first driving projection (182)；
Wherein, described expander valve bar (12A) is between one first operating position and one second operating position, when described expansion
When pipe valve bar (12A) is in the first operating position, a pair of described expander valve bars (12A) close up into a cylinder, when described expansion
When pipe valve bar (12A) is in the second operating position, outwards separation simultaneously extrudes copper pipe to a pair of described expander valve bars (12A) simultaneously
Inwall.
2. multi-point tube expander according to claim 1, it is characterised in that described expander valve bar (12) has magnetic.
3. a kind of multi-point tube expander, it is characterised in that described multi-point tube expander (1) includes：
The housing (2) of a pair of opposing, the center of described housing (2) are provided with a fixed shaft hole (21), described fixing axle
The circumference in hole (21) is provided with some first connected circular holes (22), and half is respectively equipped with the front-rear side walls of described housing (2)
Circular mouth of connecting trough (23), the circumference of described mouth of connecting trough (23) is provided with some second connected circular holes (24), described
The first connection the ring disk (3) of an annular is respectively equipped with the outside of first connected circular hole (22), the described first connection the ring disk (3)
Circumference is provided with some first the ring disk circular holes (31), the first described the ring disk circular hole (31) and described the first connected circular hole (22)
It is connected respectively by one first attachment screw (4), the second of an annular is respectively equipped with the outside of described mouth of connecting trough (23)
The ring disk (5) is connected, the circumference of the described second connection the ring disk (5) is provided with some second the ring disk circular holes (51), and described second
The ring disk circular hole (51) is connected by one second attachment screw (6) respectively with described the second connected circular hole (24)；
One driving worm screw (8), described driving worm screw (8) is rotatably arranged between described mouth of connecting trough (23), described
Driving worm screw (8) include a worm shaft (81) and a worm gear denticle (82), the both ends of described worm shaft (81) and be respectively equipped with
One worm bearing (9), described worm bearing (9) are separately positioned between described mouth of connecting trough (23)；
One handle (7), described handle (7) are removably disposed in the afterbody of described worm shaft (81)；
One driving worm gear (10), described driving worm gear (10) be arranged between described fixed shaft hole (21) and with described snail
Wheel denticle (82) is engaged, and the center of described driving worm gear (10) is provided with a worm gear axis hole (101), described worm gear axis hole
(101) inwall is provided with a locking notch (102)；
One drive shaft (11A), described drive shaft (11A) run through described worm gear axis hole (101), described drive shaft
(11A) includes a columned rotating shaft main body (111A), and the side wall of described rotating shaft main body (111A) is provided with a locking horizontal stripe
(1111A), described locking horizontal stripe (1111A) are engaged with described locking notch (102), described rotating shaft main body (111A)
Afterbody be provided with a columned first connection cylinder (112A), it is cylindric that the head of described rotating shaft main body (111A) is provided with one
The second connection cylinder (113A), it is prominent that the outer wall circumference at the top of the described second connection cylinder (113A) is provided with some drivings
Go out (115A), the described first connection cylinder (112A) runs through one first spring bearing (14)；
One expander component (SA), described expander component (SA) are rotatably arranged in the head of described drive shaft (11A),
Described expander component (SA) runs through one second spring bearing (13), and described expander component (SA) includes a pair of opposing
Expander valve bar (12A), some spring seat slices (15A) and a pawl assembly (R) for resetting spring coil (16A), a pair of arcs, it is described
The head of expander valve bar (12A) is provided with a ladder tringle (121), and the afterbody of described expander valve bar (12A) is provided with a semicircular cylinder
The rotating cylinder (122A) of shape, the outer wall of described expander valve bar (12A) are provided with the upper spring locating slot of some arcs
(120A), the inwall of described spring seat slice (15A) are provided with the lower spring locating slot (151A) of some arcs, described reset
Spring coil (16A) is separately positioned between described upper spring locating slot (120A) and lower spring locating slot (151A)；
Described pawl assembly (R) includes a ratchet ring support (17), some reduction torsion springs (19) and some expansion pawls (18), institute
The ratchet ring support (17) stated includes the ring support main body (171) of an annular, and the inwall of described ring support main body (171) is circumferentially upper uniform
Ground is provided with some pawl rotation circular grooves (172) and some torsion springs and fixes circular groove (173), adjacent pawl rotation circular groove (172) and
The activity space (174) for expansion pawl (18) activity being respectively equipped between torsion spring fixation circular groove (173) described in a confession, it is described
The spring body of reduction torsion spring (19) is arranged on described torsion spring and fixed in circular groove (173), and described expansion pawl (18) includes a spine
Pawl main shaft (181), one end of described ratchet main shaft (181) are provided with the first driving projection (182) of a wedge shape, described ratchet
The other end of main shaft (181) is provided with a second discoid driving projection (185), the end of the described first driving projection (182)
End is provided with a columned projection rotary shaft (183), and described projection rotary shaft (183) is rotatably arranged in described ratchet
Rotate in circular groove (172), a torsion spring neck (184) is respectively equipped with the outer wall of the described first driving projection (182)；
Wherein, described expander valve bar (12A) is between one first operating position and one second operating position, when described expansion
When pipe valve bar (12A) is in the first operating position, a pair of described expander valve bars (12A) close up into a cylinder, when described expansion
When pipe valve bar (12A) is in the second operating position, outwards separation simultaneously extrudes copper pipe to a pair of described expander valve bars (12A) simultaneously
Inwall.
4. multi-point tube expander according to claim 3, it is characterised in that described expander valve bar (12) has magnetic.
5. a kind of pawl assembly (R) for tube expander, include a ratchet ring support (17), some reduction torsion springs (19) and some expansions
Ratchet (18) is opened up, described ratchet ring support (17) includes the ring support main body (171) of an annular, described ring support main body (171)
Some pawl rotation circular grooves (172) are evenly provided with inwall circumference and some torsion springs fix circular groove (173), adjacent ratchet turns
The activity for expansion pawl (18) activity being respectively equipped between dynamic circular groove (172) and torsion spring fixation circular groove (173) described in a confession is empty
Between (174), the spring body of described reduction torsion spring (19) is arranged on described torsion spring and fixes in circular groove (173), described extension spine
Pawl (18) includes a ratchet main shaft (181), and one end of described ratchet main shaft (181) is provided with the first driving projection of a wedge shape
(182), the other end of described ratchet main shaft (181) is provided with a second discoid driving projection (185), and described first drives
The end of dynamic projection (182) is provided with a columned projection rotary shaft (183), and described projection rotary shaft (183) is rotationally
It is arranged in described pawl rotation circular groove (172), a torsion spring is respectively equipped with the outer wall of the described first driving projection (182)
Neck (184), the described expansion pawl (18) of described reduction torsion spring (19) compressing, and cause described expansion pawl (18) tool
There is the trend of the pivot towards described ratchet ring support (17).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810999759.3A CN109108171A (en) | 2017-11-14 | 2017-11-14 | Multi-point tube expander |
| CN201711124756.7A CN107639171A (en) | 2017-11-14 | 2017-11-14 | Multi-point tube expander |
| CN201810999765.9A CN109047528A (en) | 2017-11-14 | 2017-11-14 | Pawl assembly for tube expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711124756.7A CN107639171A (en) | 2017-11-14 | 2017-11-14 | Multi-point tube expander |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810999765.9A Division CN109047528A (en) | 2017-11-14 | 2017-11-14 | Pawl assembly for tube expander |
| CN201810999759.3A Division CN109108171A (en) | 2017-11-14 | 2017-11-14 | Multi-point tube expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107639171A true CN107639171A (en) | 2018-01-30 |
Family
ID=61125951
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810999759.3A Withdrawn CN109108171A (en) | 2017-11-14 | 2017-11-14 | Multi-point tube expander |
| CN201711124756.7A Pending CN107639171A (en) | 2017-11-14 | 2017-11-14 | Multi-point tube expander |
| CN201810999765.9A Withdrawn CN109047528A (en) | 2017-11-14 | 2017-11-14 | Pawl assembly for tube expander |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810999759.3A Withdrawn CN109108171A (en) | 2017-11-14 | 2017-11-14 | Multi-point tube expander |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810999765.9A Withdrawn CN109047528A (en) | 2017-11-14 | 2017-11-14 | Pawl assembly for tube expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN109108171A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116493483A (en) * | 2023-06-29 | 2023-07-28 | 江苏宏亿精工股份有限公司 | Safety belt pretensioner pipe production equipment |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117428098B (en) * | 2023-12-20 | 2024-03-05 | 成都天科航空制造股份有限公司 | Pipe fitting spinning processing device and processing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4055064A (en) * | 1976-01-08 | 1977-10-25 | Schow Virgle L | Muffler and tail pipe expander and cleaner |
| WO1992017292A1 (en) * | 1991-04-02 | 1992-10-15 | Kauno Koskinen | Pipe expanding pliers |
| CN1906377A (en) * | 2003-04-25 | 2007-01-31 | 国际壳牌研究有限公司 | Expander system for incremental expansion of a tubular element |
| CN104093506A (en) * | 2012-02-03 | 2014-10-08 | 雷奥两合股份公司 | Expansion head for expansion tools, expansion tool comprising said expansion head and use thereof |
| CN203917668U (en) * | 2014-07-10 | 2014-11-05 | 金华市威科工贸有限公司 | Eccentric tube expander ratchet mechanism |
| CN106563737A (en) * | 2015-10-09 | 2017-04-19 | 常州良旭车辆配件有限公司 | Pipe-expansion tip cone and pipe-expansion method of the same |
| CN106903231A (en) * | 2017-01-24 | 2017-06-30 | 宁波菲力克汽配有限公司 | A kind of port forming machine |
| CN107137132A (en) * | 2017-06-03 | 2017-09-08 | 成都五义医疗科技有限公司 | A kind of chuck mode reducing casing tube device and puncture outfit |
-
2017
- 2017-11-14 CN CN201810999759.3A patent/CN109108171A/en not_active Withdrawn
- 2017-11-14 CN CN201711124756.7A patent/CN107639171A/en active Pending
- 2017-11-14 CN CN201810999765.9A patent/CN109047528A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4055064A (en) * | 1976-01-08 | 1977-10-25 | Schow Virgle L | Muffler and tail pipe expander and cleaner |
| WO1992017292A1 (en) * | 1991-04-02 | 1992-10-15 | Kauno Koskinen | Pipe expanding pliers |
| CN1906377A (en) * | 2003-04-25 | 2007-01-31 | 国际壳牌研究有限公司 | Expander system for incremental expansion of a tubular element |
| CN104093506A (en) * | 2012-02-03 | 2014-10-08 | 雷奥两合股份公司 | Expansion head for expansion tools, expansion tool comprising said expansion head and use thereof |
| CN203917668U (en) * | 2014-07-10 | 2014-11-05 | 金华市威科工贸有限公司 | Eccentric tube expander ratchet mechanism |
| CN106563737A (en) * | 2015-10-09 | 2017-04-19 | 常州良旭车辆配件有限公司 | Pipe-expansion tip cone and pipe-expansion method of the same |
| CN106903231A (en) * | 2017-01-24 | 2017-06-30 | 宁波菲力克汽配有限公司 | A kind of port forming machine |
| CN107137132A (en) * | 2017-06-03 | 2017-09-08 | 成都五义医疗科技有限公司 | A kind of chuck mode reducing casing tube device and puncture outfit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116493483A (en) * | 2023-06-29 | 2023-07-28 | 江苏宏亿精工股份有限公司 | Safety belt pretensioner pipe production equipment |
| CN116493483B (en) * | 2023-06-29 | 2023-09-15 | 江苏宏亿精工股份有限公司 | Safety belt pretensioner pipe production equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109047528A (en) | 2018-12-21 |
| CN109108171A (en) | 2019-01-01 |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180130 |
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